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Specialised cells in the stomach release HCl to aid digestion. If they release too much HCl, the excess can be neutralised by antacid tablets. Which of the following should be more effective active ingredient of antacid tablets?

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$Ca (OH)_{2}$

$Mg (OH)_{2}$

$Al (OH)_{3}$

$H_{2} {SO}_{4}$

answer is B.

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Detailed Solution

$Al (OH)_{3}$ is a triacidic base.

Here, $Al (OH)_{3} \to {Al}^{3 +} + 3 ({OH}^{-})$ .

Here, the number mole of OH^- ions is the neutralisation of oxide.

Therefore, 3(OH) ions mixture 3 moles of oxide.

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